Hopper.



UNITED STATES Patented July 2s, isos."

EEICE.

PATENT H OPPER.

SPECIFICATION forming part of LettersPatent No."" "3 4,74 0, dated July 28, 1903. Application niet lapin 23,:1903. serial No. 153.918. (No modem .To all whom it may concern:

Be it known that I, NoYEs F. PALMER, a citizen of the United States, residing at New York city, (Brooklym) county ofKings, and State of New York, have invented certain new and useful Improvements in Hoppers,of which the following is a specification.

This invention relates to a hopper for molds for making articial stone and for similar purposes.

The hopper is so constructed that it may be readily taken apart and fitted to molds of diiferentsizes and that it is properly reinforced at the corners and secured against displacement.

In the accompanyingdrawingsls`igure lis a perspective View of part of a mold for making artificial stone provided with my improved hopper; Fig. 2, a cross-section online 2 2, Fig. l; Fig. 3, a perspectiveview of the corner-plate; Fig. 4, a bottom view thereof; and Fig. 5, a plan ofthe hopper, showing a nest of additional hoppers in dotted'lines.

The hopper is composed, essentially,of four inclined sides or boards A and of four correspondingly-inclined angular corner-plates B.

Each corner plate is composed of a pair of .wings b, having inwardly-extending -ribs b.

These ribs are received by corresponding mortises in the lower edges of sides A, and thus extend flush with the inner face of the hopper, Fig. l. The object of the'ribs is to form a reinforcement for the sides at the inner corners of the hopper which are subjected to the greatest wear during the tamping operation. The corner-plates B are tted over the adjoining upright edges ofthe sides A by bolts ct.

and are removablyconnected to such sides These bolts "pass through corresponding holes in the sides and corner-plates, and by withdrawing them the hopper may be readily taken apart. One of the wings b of each corner-plate is provided with a downwardly-projecting lug b2. This lug fits into a corresponding notch d of a top plate d,that

is iush with the mouth of the mold D and holds the hopper against lateral displacement.

At opposite sides ot' the hopper there are removably secured to the corner-plates B a pair of foot-bars e, that project laterally beyond the boards A. These bars are provided with a number of perforations e', either one of which is adapted for the reception of a bolt a., by' which the foot-bar is secured to the hopper.

In use the hopper is fitted overthe mouth of the mold with the lugs b2 entering the notches d. Two operators standingupon the plates d step upon the projecting ends of the bars e t0 prevent tilting of 'the hopper and then the concrete is filled in and tamped, as usual. After the operation has been completed the hopper is removed preparatory to the removal of the green stone.

It will be seen `that my improved hopper maybe readily taken apart and that the same corner-plates may be fitted to boards of different sizes. So, for example, in Fig. 5l have shown a nest of three hoppers, each of which is-composed of like corner-plates, while the sides vary in length. Thus by furnishing a mold with one set of corner-plates and with several sets of boards the operator may readily construct the different sizes of hopper required for the machine.

.In taking the hopper apart the bolts are withdrawn to disconnect the foot-bars from the corner-plates and the latter from the sides. The corner-plates are then bolted to a new set of sides, and the foot-bars are bolted to the corner-plates, the bolts being inserted through those perforations e', which are now in alinement with the perforations of the corner-plates.

1. A hopper composed of inclined recessed sides, and corner-plates b'oltedto said .sides and having inwardly extending ribs and downwardly-extending lugs, substantially as specified.

2. A hopper composed of inclined sides, corner-plates removably connected to said sides, and 1atera1lyprojecting foot-bars that,

rated foot-bars bolted to the corner-plates 1o and projectimgr beyond the sides, substantiaily as specified.

are removably connected to the corner-plates, Signed by me, at New York city, (Manhatsnbstantially as specified. tam) New York, this 22d day of April, 1903. 3. In a hoppen-,inclined recessed sides,com NOYES F. PALMER.

bined with corner-plates bolted to said sides Witnesses:

and having inwardly extending ribs and WILLIAM SCHULZ,

downwardly-extending lugs, and .with perfo- FRANK V. BRIESEN. 

